LIGHT YEARS AHEAD

OUT OF JUICE

UFO-NO

Nasa alien hunters are 'well on way to finding LIFE on Mars', top boss admits

Zuckerberg said he wanted the 100 million figure to rise to one billion.

He said: "If we can do this, it will not only turn around the whole decline in community membership we've seen for decades, it will start to strengthen our social fabric and bring the world closer together.

"As I've travelled around and learned about different places, one theme is clear: every great community has great leaders.